Method of manufacturing and assembling ball-bearings.



No. 888,303. I ,PATENTED DEC. 11, 1906.

- R. CONRAD.

- METHOD OF MANUPACTURIQIG AND ASSEMBLING BALL BEARINGS.

APPLIMT'ION FILED MAY 18. 1906.

YINVENTOR:

WITNESSES: @QW 5 ml v m r m. MD

Specification of Letters Patent,

lPzttenteci Dec. 11, 1996.

Grigiuel eppfimticm filed February 23, 190% Serial No. 194,84. Divided marl this application filed May i8, 19%. Serial Ho. 317,6:S8.

ings, of which the following is a soecilicotioo. This epylicotron 1S :1- (llVlSlOn of my previous opp icetion, Serial No. 194,80 i lilerl February :3, 1904. In that zi )pliczition t lierc is described and claimed a bearing comprising a pair of rings and the bolls between tilOllt,

all arranged in a unitary structure, with the" parts holdin each other togetlierythe rings having opposing grooves Whose sides are un interrupted throu hoot their circumference. l. have discoverec also a process by enrich such a, bearing with u'ninterrw ted sides may be monuractureclond esseml) ed very eosily and rapidly, and such process forms the sub jectmictter of the resent application. For ti purpose the si es of the two rings are so oroportione'd as to be separated by a distance their the diameter of the bells i-vhen the rings are concentric, so that in such position the bells cannot fell out nor the rings be secerotezl from eecll other in. an axial direction. The introduction of the bells into the race- Way formed by the grooves is 'eflected by shifting the rings eccentrically to each other to Widen the s ace between the edges of the rings sufiieient y to introduce the balls oetW' en the eclges'cf the lin s. A limited number of cells may be intro need in such s space, the ball extendiri when incontaot with each other only partly around the recewoy. The rings are then restored to a con" centric position, anclin order to prevent a re turn to the eocentric position spacers are in-- troduced between the balls to distribute them substantially entirely around the race way. By using elastic spacers I make th of such size as to substantially or approximately fill the raceway, so that the* may not fall out at the sides, and 1 intro use them oetween the edges of the rings by suiliciently compressing them. By this orocess it will be seen the balls and spacers fill the entire circumference of the raceway and camiot escepe therefrom accidentally, I removed by a reversal of the process 0 gambling t The accompanying drawings illustrate the plicetion of the process to tne specific style 0! bearing shown 1n the prior application a cove referred to. The drawings are more rings 511111 8 oe maul? in detail and in amen; Ll in posit l ioz' lire introduction of the balls. Fig 3 :2, rHsmoiml section oi 5 1;. l on the line I. Fig. 4 is detail se tron in lo the a of .1 ni Upoolspocery lieiernng to the bearings illustrated, the

inner and outer ZlH S A and B res QCtlVGl' h 7 3 1 low are formed 'a'it o qroo ves L and l E F of Sitld. groo ri e preferably (lQS or so 1 being scpm sled l); sv ll1sence less tho-n the (lmmeter ol the bolls G, so that tool; lls cannot e '1 po 5 r0151 the rooves nor can the r we l) I q l tron relatively to o other in am substantlie raceway fofium'l hit by means of spacer Fig. S'GCil 2 been: or crlg'esflms n,-

with r my practical mi /s11.-

were either bodily reomvolilo or pro-- M .h :1 rec so tlmmgii which the bulls might be introdn ed one it s time. To sssemble such 9, bee-ring, be

tween the E the l I on shown in shaped space I? n such "for exam f tlisii (immersioi e ins-11:; oi ti in the nu, m, which may b be i 'l y me i s of meclnmiecl t o manner.

spacers. The symcers may be the type ml extent. The mil-1e: are specee'l at-port EiiCltOtllQl in distri (:1 around with the balls. The spacers H, however,

are held in place by reason of their size, being I larger than the space between the sides of the grooves C and D. in order to introduce them, the springs are compressed and the individual s acers tiu'ned sidewise and intro duced one y one through the space between the sides of the rings.

VS hat I claim is L; The method of manufacturing and assenibling a ball-bearing into a unitary structure the parts of which hold each other together, which consists in forming inner and outerrings having opposing grooves the sidesof which are uninterrupted throughout their circumference, and which are separated by a distance less than the diameter of the balls when the rings are concentric, placing said rings eccentrically to each other to widen. the space between said edges at one side to a Width greater than the diameter of the balls, introducing through said space a limited number of balls extending when in contact with each other only partly around the raceway formed by said grooves, and restoring the rings to concentric position and introducing spacers between the balls to distribute them substantially entirely around the raceway so as to prevent the rings from returning to the eccentric position.

2. The method of manufacturing and assembling a ball-bearing into a unitary structure the parts of whic i. hold each other togcther, which consists in forming inner and outer rings having opposing grooves the sides of which. are uninterrupted throughout their circumference, and WillCll are separated by a distance less than the diameter of the balls when the rings are concentric,-placing said 1 rings eccentrically to each other to widen the tirely around the raceway so as to prevent the rings from returning to the eccentric'position.

3. The method of manufacturing and assembling a balhbearing into a unitary structure the parts of which hold each other together, which consists in forming inner and outer rings having opposing grooves the sides of which are uninterrupted throughout their circumference, and which are separated by a distance less than the diameter of the balls when the rings are concentric, placing said rings eccentrically to each other to widen the space between said edges at one side to a width greater than the diameter of the balls, introducing through said space a limited number of balls extending when in contact with each other only partly around the raceway formed by said grooves, and. restoring the rings to concentric position and distributing the balls substantially entirely around the raceway by compressing and introducing 7 between them elastic spacers adapted when compressed to pass between the edges of the rings, and when released to'substantially or approximately fill the raceway so as to be held in by the sides of the groove. 1

In witness' whereof I have hereunto signed my name in the presence of two subscribing witnesses.

ROBERT CONRAD."

Witnesses:

VVOLnEM/m HAUrT, HENRY IIAsPER.

tion and introducing spacers between the f" balls to distribute them substantially ell- 1 

